后端数据返给前端

//用ModelAndView

@GetMapping("/test13")

public ModelAndView checkNode(HttpSession httpSession){

SysUser sysUser =(SysUser) httpSession.getAttribute(Constant.constant);

ModelAndView mav=new ModelAndView("/index");

Integer user_id =sysUser.getUser_id();

Listnodes =nodeService.checkNode(user_id);

User user =userService.searchById(user_id);

Department department =departmentService.searchByDepartmentId(user.getDepartment_id(),user.getEmployee_id());

mav.addObject("list1",nodes);

String str=user.getName()+"["+department.getDepartment_name()+"-"+user.getTitle()+"]";

mav.addObject("person",str);

//model.addAttribute("list1",nodes);

    return mav;

}

//用string

@GetMapping("/displayEmployee")

public String displayEmployee(Model model){

Listusers =userService.searchAllByData();

model.addAttribute("employeeList",users);

return "employeelist";

}